Church Street has a huge assortment of eclectic instruments, four grand and five upright pianos, a Conn Church Organ, Hammond and Wurlitzer Electric Organs, a collection of vintage Chord Organs, a Harmonium, Moog theremin, vintage vibraphone, Chinese and Irish harp and a fine selection of basses, guitars, vintage and cutting edge microphones, amps and outboard gear.  The more expensive instruments incur a small hire fee, but most are available at no cost to clients in the building and are located upstairs in Guy Gross's personal Instrument Library.